2011 Ram 3500 cooling

INSTRUMENT CLUSTER DESCRIPTION
1. Tachometer
The tachometer indicates engine speed in revolutions per
minute.
CAUTION!
Do not operate the engine with the tachometer
pointer at high RPM for extended periods. Engine
damage may occur.
2. Turn Signal Indicator Light The arrow will flash with the exterior turn signal
when the turn signal lever is operated.
NOTE:
•A continuous chime will sound if the vehicle is driven
more than 1 mile (1.6 km) with either turn signal on.
•Check for an inoperative outside light bulb if either
indicator flashes at a rapid rate.
3. Fuel Gauge
Shows level of fuel in tank when ignition switch is in the
ON position.
4. Temperature Gauge
The temperature gauge shows engine coolant tempera-
ture. Any reading within the normal range indicates that
the engine cooling system is operating satisfactorily.
The gauge pointer will likely indicate a higher tempera-
ture when driving in hot weather, up mountain grades,
or when towing a trailer. It should not be allowed to
exceed the upper limits of the normal operating range.
3
UNDERSTANDING YOUR INSTRUMENT PANEL 11

WARNING!
A hot engine cooling system is dangerous. You or
others could be badly burned by steam or boiling
coolant. You may want to call an authorized dealer-
ship for service if your vehicle overheats.
5. Speedometer
The speedometer shows the vehicle speed in miles per
hour and/or kilometers per hour (MPH/km/h).
6. 4LOW Indicator Light – If Equipped This light alerts the driver that the vehicle is in
the four-wheel drive LOW mode. The front and
rear driveshafts are mechanically locked to-
gether forcing the front and rear wheels to
rotate at the same speed. Low range provides a greater
gear reduction ratio to provide increased torque at the
wheels. For vehicles equipped with a premium cluster this indi-
cator will display in the Electronic Vehicle Information
Center (EVIC). Refer to ”Electronic Vehicle Information
Center (EVIC)” in “Understanding Your Instrument
Panel” for further information.
7. 4WD Indicator Light – If Equipped
This light indicates the vehicle is in four-wheel
drive and 4LOCK. 4WD allows all four wheels
to receive torque from the engine simulta-
neously.
8. 4WD Auto Indicator Light – If Equipped The 4WD AUTO indicator light will be illumi-
nated whenever the four-wheel drive mode is
automatically engaged.
12 UNDERSTANDING YOUR INSTRUMENT PANEL

STARTING AND OPERATING
CONTENTS
Starting Procedures ..................... 44
▫ Manual Transmission – If Equipped ........ 44
▫ Automatic Transmission – If Equipped ...... 44
▫ Extreme Cold Weather .................. 44
▫ Normal Starting Procedure – Engine
Manifold Air Temperature Above 66°F (19°C) . 45
▫ Starting Procedure – Engine Manifold Air
Temperature 0°F To 66°F (–18°C To 19°C) .... 46
▫ Starting Procedure – Engine Manifold Air
Temperature Below 0°F (-18°C) ............ 47▫
Starting Fluids ....................... 49
 Normal Operation – Diesel Engine .......... 49
▫ Cold Weather Precautions ............... 50
▫ Engine Idling ........................ 52
▫ Stopping The Engine ................... 53
▫ Engine Speed Control .................. 55
▫ Operating Precautions .................. 55
▫ Cooling System Tips – Automatic
Transmission ........................ 55
4

•The engine requires the use of“Ultra Low Sulfur
Diesel Fuel”. Use of incorrect fuel could result in
engine and exhaust system damage. Refer to “Fuel
Requirements” in “Starting and Operating” for further
information.
Engine Oil Usage
Refer to “Maintenance Procedures” in “Maintaining Your
Vehicle” for the correct engine oil viscosity.
Winter Front Usage
If a winter front or cold weather cover is to be used, a
percentage of the total grille opening area must be left
uncovered to provide sufficient air flow to the charge air
cooler and automatic transmission oil cooler. The per-
centage of opening must be increased with the increasing
ambient air temperature and/or engine load. If the
cooling fan can be heard cycling frequently, increase the
size of the opening in the winter front. A suitable cold
weather cover is available from your MOPAR dealer.
Battery Blanket Usage
A battery loses 60% of its cranking power as the battery
temperature decreases to 0°F (-18°C). For the same de-
crease in temperature, the engine requires twice as much
power to crank at the same RPM. The use of 120 VAC
powered battery blankets will greatly increase starting
capability at low temperatures. Suitable battery blankets
are available from your authorized MOPARdealer.
Engine Warm-Up
Avoid full throttle operation when the engine is cold.
When starting a cold engine, bring the engine up to
operating speed slowly to allow the oil pressure to
stabilize as the engine warms up.
NOTE:High-speed, no-load running of a cold engine
can result in excessive white smoke and poor engine
performance. No-load engine speeds should be kept
under 1,200 RPM during the warm-up period, especially
in cold ambient temperature conditions.
4
STARTING AND OPERATING 51

Engine Speed Control
CAUTION!
Prevent overspeeding the engine going downhill.
When descending steep grades, use a combination of
gears and service brakes to control vehicle/engine
speed. Overspeed can cause severe engine damage.
Operating Precautions
Avoid Overheating The Engine
The temperature of the engine coolant (antifreeze) (a
mixture of 50% ethylene-glycol and 50% water) must not
exceed the normal range of the temperature gauge 240°F
(116°C) with a 16 psi (110 kPa) radiator cap.
Usually the engine coolant (antifreeze) temperature indi-
cated during operation will be to the left of center in the
normal range of the gauge.
Avoid Low Coolant Temperature Operation
Continual operation at low engine coolant (antifreeze)
temperature below the normal range on the gauge 140°F
(60°C) can be harmful to the engine. Low engine coolant
(antifreeze) temperature can cause incomplete combus-
tion which allows carbon and varnish to form on piston
rings and injector nozzles. Also, the unburned fuel can
enter the crankcase, diluting the lubricating oil and
causing rapid wear to the engine.
Cooling System Tips – Automatic Transmission
To reduce potential for engine and transmission over-
heating in high ambient temperature conditions, take the
following actions:
•City Driving —
When stopped, shift the transmission into NEUTRAL
and increase engine idle speed.
•Highway Driving —
Reduce your speed.
4
STARTING AND OPERATING 55

NEUTRAL
Use this range when the vehicle is standing for prolonged
periods with the engine running. The engine may be
started in this range. Set the parking brake if you must
leave the vehicle.
DRIVE
This range provides underdrive first, second and third
gears, direct fourth gear and overdrive fifth and sixth
gears. The shift into overdrive fifth and sixth gear occurs
only after the transmission has completed the shift into
fourth gear. No other movement of the shift mechanism
is required to complete the 4–5 or 5–6 gear shifts.
Upshifts into both overdrive gears, fifth and sixth, will be
delayed when the transmission fluid temperature is
below 40°F (4.5°C) or above 240°F (115.5°C).NOTE:
Use caution when operating a heavily loaded
vehicle in second or first gear in high ambient tempera-
tures as torque converter slip can impose significant
additional heat load on the cooling system.
Overdrive Operation
The overdrive automatic transmission contains an elec-
tronically controlled fifth and sixth (Overdrive). The
transmission will automatically shift from DRIVE to
Overdrive if the following conditions are present:
•the shift lever is in DRIVE;
•the engine coolant has reached normal operating tem-
perature;
•vehicle speed is above approximately 30 mph
(48 km/h);
•the “TOW/HAUL” switch has not been activated;
4
STARTING AND OPERATING 65

REVERSE
This range should be used only after the vehicle has come
to a complete stop.
NEUTRAL
Use this range when the vehicle is standing for prolonged
periods with the engine running. The engine may be
started in this range. Set the parking brake if you must
leave the vehicle.
DRIVE
This range provides all forward gears, including fourth
gear direct, fifth and sixth. Use this range for most city
and highway driving. Upshifts into both overdrive gears,
fifth and sixth, will be delayed when the transmission
fluid temperature is between -4°F (-20°C) and 41°F (5°C).
During very cold conditions when the transmission fluid
is below -4°F (-20°C), the transmission will be limited to
third gear. Normal operation will return after the trans-
mission fluid warms up.NOTE:
Use caution when operating a heavily loaded
vehicle in second or first gear selections in high ambients
as torque converter slip can impose significant additional
heat load on the cooling system.
Overdrive Operation
The Overdrive automatic transmission contains an elec-
tronically controlled fifth and sixth gear. The transmis-
sion will automatically shift from DRIVE to fifth or sixth
gear if the following conditions are present:
•the shift lever is in DRIVE;
•the engine coolant has reached normal operating tem-
perature;
•vehicle speed is above approximately 38 mph
(61 km/h) for fifth gear and 50 mph (80 km/h) for
sixth gear;
•the “TOW/HAUL” switch has not been activated
(sixth gear is inhibited in “TOW/HAUL” mode);
4
STARTING AND OPERATING 71

MAINTAINING YOUR VEHICLE
CONTENTS
Engine Compartment — 6.7L Diesel ......... 97
 Maintenance Procedures .................. 98
▫ Engine Oil .......................... 98
▫ Engine Air Cleaner Filter ............... 102
▫ Draining Fuel/Water Separator Filter ...... 104
▫ Priming If The Engine Has Run Out Of
Fuel .............................. 108
▫ Intervention Regeneration Strategy – EVIC
Message Process Flow ................. 109
▫ Diesel Exhaust Fluid – Chassis Cab Only . . . 112 ▫
Maintenance-Free Batteries ............. 112
▫ Cooling System ..................... 113
▫ Charge Air Cooler – Inter-Cooler ......... 119
▫ Brake System ....................... 119
▫ Clutch Hydraulic System ............... 121
▫ Transfer Case – If Equipped ............. 121
▫ Manual Transmission – If Equipped ....... 121
▫ Automatic Transmission – If Equipped ..... 122
▫ Noise Control System Required Maintenance
& Warranty ........................ 125
6